Conceptual graph-based knowledge representation for supporting reasoning in African traditional medicine

Although African patients use both conventional or modern and traditional healthcare simultaneously, it has been proven that 80% of people rely on African traditional medicine (ATM). ATM includes medical activities stemming from practices, customs and traditions which were integral to the distinctive African cultures. It is based mainly on the oral transfer of knowledge, with the risk of losing critical knowledge. Moreover, practices differ according to the regions and the availability of medicinal plants. Therefore, it is necessary to compile tacit, disseminated and complex knowledge from various Tradi-Practitioners (TP) in order to determine interesting patterns for treating a given disease. Knowledge engineering methods for traditional medicine are useful to model suitably complex information needs, formalize knowledge of domain experts and highlight the effective practices for their integration to conventional medicine. The work described in this paper presents an approach which addresses two issues. First it aims at proposing a formal representation model of ATM knowledge and practices to facilitate their sharing and reusing. Then, it aims at providing a visual reasoning mechanism for selecting best available procedures and medicinal plants to treat diseases. The approach is based on the use of the Delphi method for capturing knowledge from various experts which necessitate reaching a consensus. Conceptual graph formalism is used to model ATM knowledge with visual reasoning capabilities and processes. The nested conceptual graphs are used to visually express the semantic meaning of Computational Tree Logic (CTL) constructs that are useful for formal specification of temporal properties of ATM domain knowledge. Our approach presents the advantage of mitigating knowledge loss with conceptual development assistance to improve the quality of ATM care (medical diagnosis and therapeutics), but also patient safety (drug monitoring)

Mission drift in qualitative research, or moving toward a systematic review of qualitative studies, moving back to a more systematic narrative review

The paper argues that the systematic review of qualitative research is best served by reliance upon qualitative methods themselves. A case is made for strengthening the narrative literature review and using narrative itself as a method of review. A technique is proposed that builds upon recent developments in qualitative systematic review by the use of a narrative inductive method of analysis. The essence of qualitative work is described. The natural ability for issues of ethnicity and diversity to be investigated through a qualitative approach is elaborated. Recent developments in systematic review are delineated, including the Delphi and Signal and Noise techniques, inclusion of grey literature, scoping studies and meta-ethnography. A narrative inductive interpretive method to review qualitative research is proposed, using reflective teams to analyse documents. Narrative is suggested as a knowledge-generating method and its underlying hermeneutic approach is defended as providing validity and theoretical structure. Finally, qualities that distinguish qualitative research from more quantitative investigations are delineated. Starting points for reflecting on qualitative studies and their usefulness are listed. Key words: Qualitative Systematic Review, Evidence-Based Policy, Grey Literature, Scoping Studies, Delphi, ‘Signal and Noise’, Meta-ethnography, Narrative Review, Narrative Method, and Reflective Teams

The Delphi: An Underutilized Method of Scholarly and Practical Research for a Public Relations Field in Transition

This paper introduces, analyzes, and explains the Delphi method of research, particularly as it applies to certain aspects of the public relations industry. The Delphi technique became known some fifty years ago when the Rand Corporation used it extensively for forecasting. Since then, scholars and forecasters have used it periodically for early, qualitative explorations into complex issues or domains. The overall purpose of the Delphi is to facilitate formal discussion among selected experts in a given domain around a particular topic; it is particularly useful when those experts cannot easily come together in one place. The method encourages the sharing of diverging worldviews over a few “rounds” or iterations in the hope that the views may converge into some direction around the given topic. For this reason, the Delphi has often been used in situations or environments that tend to be somewhat ambiguous and where interviews and surveys are neither timely nor appropriate. Public relations scholars started incorporating the Delphi method into their research in the late 1980s, and the technique has since been employed to explore broad-ranging issues among experts on at least seven or eight occasions. It has also been used to explore ethical norms. However, public relations literature contains little discussion about the technique and its possible applications or implications for developing knowledge in the field. This paper, then, is intended to dissect the Delphi method so as to offer guidance to public relations scholars who may wish to use it in future studies. The authors, both of whom have conducted Delphi studies, believe that the method is valuable in examining topics that are emerging or underdeveloped in the field; however, certain precautions are necessary in order to ensure that the research achieves the desired effects. The paper is created through a literature review of similar articles on Delphi studies in other domains, notably health communications, followed by an examination of some studies conducted to advance issues in public relations. The authors explore the most appropriate situations for using a Delphi and list the benefits and disbenefits of different aspects or applications of the method. They trace the evolution of Delphi research from its early roots into the era of the Internet and social media, which offer new tools for increasing the number of respondents and moving through the Delphi process more quickly than could previously be done. In advancing such an examination of the Delphi, this paper should be a useful addition to emerging public relations literature

Water quality assessment, trophic classification and water resources management

Quantification of water quality (WQ) is an integral part of scientifically based water resources management. The main objective of this study was comparative analysis of two approaches applied for quantitative assessment of WQ: the trophic level index (TLI) and the Delphi method (DM). We analyzed the following features of these conceptually different approaches: A. similarity of estimates of lake WQ; B. sensitivity to indicating disturbances in the aquatic ecosystem structure and functioning; C. capacity to reflect the impact of major management measures on the quality of water resources. We compared the DM and TLI based on results from a series of lakes covering varying productivity levels, mixing regimes and climatic zones. We assumed that the conservation of aquatic ecosystem in some predefined, “reference”, state is a major objective of sustainable water resources management in the study lakes. The comparison between the two approaches was quantified as a relationship between the DM ranks and respective TLI values. We show that being a classification system, the TLI does not account for specific characteristics of aquatic ecosystems and the array of different potential uses of the water resource. It indirectly assumes that oligotrophication is identical to WQ improvement, and reduction of economic activity within the lake catchment area is the most effective way to improve WQ. WQ assessed with the TLI is more suitable for needs of natural water resources management if eutrophication is a major threat. The DM allows accounting for several water resource uses and therefore it may serve as a more robust and comprehensive tool for WQ quantification and thus for sustainable water resources management

Long-Term Functionality of Rural Water Services in Developing Countries: A System Dynamics Approach to Understanding the Dynamic Interaction of Causal Factors

Research has shown that sustainability of rural water infrastructure in developing countries is largely affected by the dynamic and systemic interactions of technical, social, financial, institutional, and environmental factors that can lead to premature water system failure. This research employs systems dynamic modeling, which uses feedback mechanisms to understand how these factors interact dynamically to influence long-term rural water system functionality. To do this, the research first identified and aggregated key factors from literature, then asked water sector experts to indicate the polarity and strength between factors through Delphi and cross impact survey questionnaires, and finally used system dynamics modeling to identify and prioritize feedback mechanisms. The resulting model identified 101 feedback mechanisms that were dominated primarily by three and four-factor loops that contained some combination of the factors: Water System Functionality, Community, Financial, Government, Management, and Technology. These feedback mechanisms were then scored and prioritized, with the most dominant feedback mechanism identified as Water System Functionality – Community – Finance – Management. This research offers insight into the dynamic interaction of factors impacting sustainability of rural water infrastructure through the identification of these feedback mechanisms and makes a compelling case for future research to longitudinally investigate the interaction of these factors in various contexts

Occupational safety and health practice: a study at rubber manufacturing industry by using hirarc

Occupational Safety and Health Act (OSHA) is a discipline with broad scope involving many specialized fields. The definition of safety is the state of being ‘safe’, condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types of consequences of failure, damage, error, accidents, harm or any other events which can be considered non-desirable. Health is a state of complete physical, mental, and social well-being and not merely the absence of disease and infirmity. Engineers play their roles at workstations to ensure the safety and health of each staff is in good conditions with proper ergonomic condition. This study conducted occupational safety and health act study at Kenny Leather (M) Sdn Bhd. The site visit, observation and interview session were conducted. The objective of this study is to identify the current or potential hazard that might be occurred in the factory. This study also providing the suitable solution and precaution step towards the zero hazard for the factory for reducing the possible accidents or injuries. Some of the suggestion that has collected through data collected was carried out through site visit using Preliminary Hazard Analysis (PHA) and HIRARC form by interviewing several workers. As a result, this study gave recommendations to the company in order to practice the safe and no harm work practice and gives priority to the safety first